well, in europe you may use channel 12 and 13 also. so there is 2 non overlapping 2.4ghz/40mhz channels: 3 and 11 further, i wonder why meraki uses 1 6 11 for autochannel only. having 12 and 13 available in addition, 1 5 9 13 is valid option as well. hiding the option to choose 40mhz channel at 2.4ghz - at least manually - is not okay, @Meraki-PM-Team! same applies to 1 5 9 13 autochannel, in case 12/13 is available, IMHO.
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